ÃÂ runtime 4.40Information growthWith the growth of communication tools like the Internet, the flow of persuasive messages has been dramatically accelerated. For the first time ever, citizens around the world are participating in uncensored conversations about their collective future. This is a wonderful development, but there is a cost.The information revolution has led to information overload, and people are confronted with hundreds of messages each day. Although few studies have looked at this topic, it seems fair to suggest that many people respond to this pressure by processing messages more quickly and, when possible, by taking mental short-cuts.Propagandists love short-cuts -- particularly those which short-circuit rational thought. They encourage this by agitating emotions, by exploiting insecurities, by capitalizing on the ambiguity of language, and by bending the rules of logic. As history shows, they can be quite successful.